Laurenciocolax A.D.Zinova & Perestenko, 1964

Holotype species: Laurenciocolax polysporus A.D.Zinova & Perestenko

Original publication and holotype designation: Zinova, A.D. & Perestenko, L.P. (1964). Alga rubra nova parasitica e mari Caspico. Novosti Sistematiki Nizshikh Rastenii [Novitates Systematicae Plantarum Non Vascularium] 1: 132-138, 3 figs. [in Russian]

Request PDF

Description: Thalli parasitic, nodular pulvinate outgrowths on Laurencia caspica. Pseudoparenchymatous medulla with elongate subcortical cells occurring in distinct filaments. Tetrasporangia elongate, cruciately divided, occurring amongst linear-shaped paraphyses. Cystocarps slightly protruding from thallus surface, several per thallus, no ostiole. Male reproductive structures occurring in clusters lining conceptacle-like cavities in male thalli.

Information contributed by: R.E. Norris. The most recent alteration to this page was made on 2020-10-30 by M.D. Guiry.

Taxonomic status: This name is of an entity that is currently accepted taxonomically.

Gender: This genus name is currently treated as feminine.

Comments: Known only in the Caspian Sea on Laurencia caspica. The family identity of Laurenciocolax is not established and there are several characters such as the filamentous cortex, cruciately divided tetrasporangia, and sunken, non-ostiolate cystocarps that suggest this genus is not a member of the Rhodomelaceae and, therefore, an alloparasite. The bearing of spermatangial branches in conceptacles is similar to some species of the host genus.

Verification of Data
Users are responsible for verifying the accuracy of information before use, as noted on the website Content page.

Contributors
Some of the descriptions included in AlgaeBase were originally from the unpublished Encyclopedia of Algal Genera, organised in the 1990s by Dr Bruce Parker on behalf of the Phycological Society of America (PSA) and intended to be published in CD format. These AlgaeBase descriptions are now being continually updated, and each current contributor is identified above. The PSA and AlgaeBase warmly acknowledge the generosity of all past and present contributors and particularly the work of Dr Parker.

Descriptions of chrysophyte genera were subsequently published in J. Kristiansen & H.R. Preisig (eds.). 2001. Encyclopedia of Chrysophyte Genera. Bibliotheca Phycologica 110: 1-260.

Linking to this page: https://www.algaebase.org/search/genus/detail/?genus_id=42871

Citing AlgaeBase
Cite this record as:
M.D. Guiry in Guiry, M.D. & Guiry, G.M. 30 October 2020. AlgaeBase. World-wide electronic publication, National University of Ireland, Galway. https://www.algaebase.org; searched on 24 April 2024